<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<form action="/security/login-in" method="post">
    <label>用户名:</label>
    <input type="text" class="username" name="username">
    <label>密码:</label>
    <input type="password" class="password" name="password">
    <button type="submit">登录</button>
</form>

</body>
</html>